gentoo ~ # emerge -C virtual/udev-197-r3
* This action can remove important packages! In order to be safer, use
* `emerge -pv --depclean <atom>` to check for reverse dependencies before
* removing packages.

virtual/udev
selected: 197-r3
protected: none
omitted: none

All selected packages: virtual/udev-197-r3

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.

gentoo ~ # emerge -C virtual/dev-manager
* This action can remove important packages! In order to be safer, use
* `emerge -pv --depclean <atom>` to check for reverse dependencies before
* removing packages.

virtual/dev-manager
selected: 0
protected: none
omitted: none

All selected packages: virtual/dev-manager-0

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.